additional layer

基本解释

This provides an additional layer of security.
这提供了额外的一层安全性。
However, an additional layer of semantics comes into play with XML.
然而使用 XML 时会产生一个语义的附加层。
Should the additional layer support all non-common functionalities of each implementation and throw exceptions if one that does not support it is chosen?
附加层是否应支持每个实现的所有非公共功能，并且如果选择了不支持该实现的附加层则抛出异常？

As the stock continues to stagnate beneath trendline resistance, these out-of-the-money calls could provide an additional layer of options-related pressure.
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Permanent life insurance can be viewed as having a core of something similar to term with an additional layer of a cash savings vehicle.
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Only if the product introduces something truly new, such as soyabeans with a much-higher oil level than usual, is there an additional layer of scrutiny.
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